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<table width="100%" summary="page for bigcity"><tr><td>bigcity</td><td align="right">R Documentation</td></tr></table>

<h2>
Population of U.S. Cities
</h2>

<h3>Description</h3>


<p>The <code>bigcity</code> data frame has 49 rows and 2 columns. 
</p>
<p>The <code>city</code> data frame has 10 rows and 2 columns.  
</p>
<p>The measurements are the
population (in 1000's) of 49 U.S. cities in 1920 and 1930.  The 49 cities are 
a random sample taken from the 196 largest cities in 1920.  The <code>city</code> data 
frame consists of the first 10 observations in <code>bigcity</code>. 
</p>


<h3>Usage</h3>

<pre>
bigcity
</pre>


<h3>Format</h3>


<p>This data frame contains the following columns:
</p>

<dl>
<dt><code>u</code></dt><dd>
<p>The 1920 population.
</p>
</dd>
<dt><code>x</code></dt><dd>
<p>The 1930 population.
</p>
</dd></dl>


<h3>Source</h3>


<p>The data were obtained from
</p>
<p>Cochran, W.G. (1977) <EM>Sampling Techniques</EM>. Third edition. John Wiley
</p>


<h3>References</h3>


<p>Davison, A.C. and Hinkley, D.V. (1997) <EM>Bootstrap Methods and Their Application</EM>. Cambridge University Press.
</p>


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